<el-button-group class="mb-4" style="position: absolute;z-index: 100;top: 20px;">
    <el-button size="small" @click="test">点</el-button>
    <el-button size="small" @click="visible=!visible">visible</el-button>
    <el-button size="small" @click="trigger">打开/关闭</el-button>
    <el-button size="small" @click="val2=!val2">打开/关闭</el-button>
</el-button-group>
<div id="cesiumContainer"></div>
<base-layer ref="baselayer" :visible="visible" title="xxx">
    <template #hdtt>bottom</template>
    <div>
        <div>tttt</div>
    </div>
    <template #ft>
        <div>bottom</div>
        <div>bottom</div>
    </template>
</base-layer>
<vxe-modal v-model="val2" show-zoom resize>
    <template #default>
        <div style="color: red">按住头部移动！！！！！！！！！！！！！！！</div>
        <div style="color: blue">按住左边距拖动！！！！！！！！！！！！！！！</div>
        <div style="color: red">按住右边距拖动！！！！！！！！！！！！！！！</div>
        <div style="color: blue">按住底边距拖动！！！！！！！！！！！！！！！</div>
        <div style="color: blue">按住左下角拖动 ！！！！！！！！！！！！！！！</div>
        <div style="color: blue">按住右下角拖动！！！！！！！！！！！！！！！</div>
    </template>
</vxe-modal>